Egg grading scale



March 24, 1936. H, c HASLAM 2,@34,94$

iZGG GRADING SCALE Filed D80. 17, 1934 INVENTOR ATTORNEY Q 9 x w Patented Mar. 24, 1936 UNITED STATES PATENT OFFICE EGG GRADING SCALE Henry C. Haslam, Chowchilla, Calif.

Application December 17, 1934, Serial No. 757,875

2 Claims. (Cl. 265-61) This invention relates to scales and is directed ing to different government schedules as may be particularly to scales for grading eggs as to size. provided from time to time.

In the egg merchandising industry it is not only A further object of the invention is to produce necessary to grade the eggs prior to marketing a simple and inexpensive device and yet one them, but the eggs are often graded prior to setwhich will be exceedingly effective for the purting them for hatching. pose for which it is designed.

In egg graders, it may be stated that the size These objects I accomplish by means of such of eggs depends on their weight, since the spestructure and relative arrangement of parts as cific gravity of the contents of all eggs is the will ly pp y a p l of h following 1i) same, irrespective of their size. Grading for size specification and claims. lo is therefore determined by weighing the eggs, In the drawing similar characters of reference The procedure of grading eggs, as practiced indicate corresponding parts in the several views: today especially by poultry associations, not only Figure 1 S a e eleVatiOh Of y improved egg involves the use of expensive scales but also re- S a e u t illustrating in dotted lines all p quires a great deal of handling of each egg durtive position of the scales when a pair of eggs is 15 ing the weighing or grading process, which rebeing graded.

sults in great time loss of labor. This is due pri- Figure 2 is a top P Of the Scale Im marily to the fact that a single egg may be Referring now more particularly to the charweighed twice because of the fact that two sets actors of reference on the drawing, the numeral of non-unitary scales are commonly used. The I nd cates a as p a provided With an 2O egg is first placed on one scale and if too heavy Standing back plate 2 mounted at right es for that scale, it is removed and placed on anthereto. Secured to the face of the back plate 2 other scale which is adapted to measure the in a n r l n vertical p n is a pp r weight and consequently the size of the heavier m er Mellnted 0n t pp 3 relatively eggs. Thus, in many cases, an egg has to b close to the top thereof, is an outwardly facing 2 weighed twice before it is placed into the shipping C d o de 4 p v d W ta O 0 container. engage a. grade indicating card 5. Scale sup- It is therefore my principal object to provide porting members 6 and l are mounted in vertical an egg scale which may be used to weigh and position on the face of the back plate 2 in spaced grade eggs regardless of their particular weight r l ion on a side f the pp r in m m 3. "0

variation. By thus providing a scale capable of e ed 0n the Supporting members 5 and 7 weighing every egg, the number of times, whi h are scales; both being identical in structure and an egg must be handled is greatly reduced and having their pointers in facing relation over the labor cost lessened. card 5.

When my scale is employed, the person weigh- Both scales being identical, a description of one 3. ing the egg need only take the egg in the hand, Will sufiice for both, their relative relation to hold it before a conveniently located candling each other having already been set out.

window, then place the egg on the scale and de- The Sc Structure comprises -p termine its weight and size, and then remove the b acket 8 m nted n h rr p n n scale egg and place it in the proper container. supporting member 6 or 1. Pivotally secured at 40 It is also my object to rovide, as a single unit, P between the br k t 8 n h p r i m ma scale device having a pair of identical but inber is a scale beam 9 in the form of a bell crank dependent functioning scales-the pointer of a g One a v y sh t le 9a and one relaeach scale registering on a single grade indicative y o leg S a e beam is formed of ing card mounted intermediate the two scales. S e t metal in Channel p By providing such a dual unit, the user may take The outer end of the leg 9b s provided With a an egg in each hand, candle the same and then threaded stud l0 and a removable nut H. Washsimultaneously place the eggs on the two scales erS l2 0 t e St d d d in place y the nut for weighing and grading. This feature also inprovide for proper balance of the scale according creases the speed with which one person may to different weighing or grading requirements. .30 grade 2. quantity of eggs. A stop member 13 of cushioning material upon As a further object, I provide my scale unit which the leg of the scale beam rests is formed with a removable grade indicating card in order on the base plate I. that the scales may be adapted, by merely re- Pivoted at Pl to the outer end of the leg 9a is placing the card, to register egg grades accorda pair of spaced vertical arms M which extend 55 upwardly and terminate in an egg cup I 5. An arm l6, formed in channel shape, is pivoted at P2 to the lower ends of the arms l4 and at the other end is pivoted at P3 between the U-shaped bracket 8 and the corresponding supporting member below the leg 9a and parallel thereto.

A pointer l! is formed on the outer arm l4 and extends out over the grade indicating card 5 in order to indicate the weight and consequent grade or size of the egg in the cup.

In use, an egg is placed in the cup l5 and the Weight thereof causes the leg 9b to lift up from the stop l3 as a counterbalance, the pointer then indicating the corresponding size of the egg on the card. The leg 9a and arm I6 are at all times parallel to each other thereby always maintaining the arms l4 and egg cup l 5 in a vertical position. I

The scales of course may be adjusted by varying the number of washers or shims l2, and the grade indicating card 5 may be removed and another inserted when the schedule of weights for the various grades or sizes of eggs is changed.

From the foregoing description it will be readily seen that I have produced such a device as substantially fulfills the objects of the invention as set forth herein.

While this specification sets forth in detail the present and preferred construction of the device, still in practice such deviations from such detail may be resorted to as do not form a departure from the spirit of the invention, as defined by the appended claims.

Having thus described my invention what I claim as new and useful and desire to secure by Letters Patent is: 5

1. An egg-grader comprising a support, a scale beam pivoted intermediate its ends on the support, said scale beam being formed in the shape of a bell crank, a vertical arm pivoted on one end of the scale beam, an egg cup on the upper 10 end of said arm, another arm pivoted at one end to the lower end of said first named arm and pivoted at the other end to the support and in parallel relation to that end of the scale beam to which said first named arm is pivoted, a pointer on said first named arm, and a grade indicating card mounted on the support and on which'the pointer reads.

2. An egg grader comprising a support, a scale beam pivoted intermediate its ends on the support, a vertical arm pivoted on one end of the scale beam, an egg cup on the upper end of said arm, another arm pivoted at one end to the lower end of said first named arm and pivoted at the other end to the support and in parallel relation to that end of the scale beam to which said first named arm is pivoted, a pointer on said first named arm, and a grade indicating card mounted on the support and on which the pointer reads.

HENRY C. HASLAM. 

